Bottle-blowing machine



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H. HILL'MANN BOTTLE LowING MACHINE Filed March 24, 1928 //7 vena/.-

Patented Dec. l30, 1930l HANS HLLMANN, OF GROSS-RASCHEN, GERMANY BOTTLE-BLOWING MACHINE Application led March 24, 1928, Serial No.

This invention relates to apparatus for moving a vertically reciprocating mould 1n y Abottle blowing machines, more particularly in those machines in which the parison or blank roughly blown in the 'preliminary mould, is transferredinto the finishing mould owing to the preliminary mould which is constituted by two halves, opening laterally, and owing to the neck mould with the parison, passing through the opened preliminary mould arms downwardly on to the finishing mould. In these machines, the iinishing mould stands lat the bottom of the machine. The height or level of the upper edge of the finishing mould is the same for lall the finishing moulds.` The height or level of the bottom edge of the preliminary mould is determined by the level of the surface of the molten glass contained in the bath. It when bottles of a different size are to 'be blown, itis necessary to change the'- moulds, larger iinishing moulds are placed on the machine, and the latter moulds are s et withtheir upper edge Vagain atthelevl of the upper edge of the preceding mould, and

further, other preliminary moulds are introduced and arranged as regards the level so that their lower edge corresponds to the level of the glass. As in changing the preliminary moulds, the level of the upper edge ofthe preliminary moulds changes so that the highest position of the neck mould to be placed on the preliminary mould is higher r lower, the replacement of the moulds always necessitates a change ofl that control cam which produces the movement of the neck mould, unless means are used for the purpose of avoiding this change of the control cam. The inventionconsists in using for the movement of the neck mould only one rigid cam secured to the machine bed, and to provide means by which, in spite of the nonvaria-bility of the whole control curve,

' an adjustment or setting of the neck mould particularly for the neck mould. an intermediate member which controls the stroke ofthe said drive, and the position and action moved upwards to a corresponding extent.

264,482, and in Germany March 10, 1927.

of which is influenced by the position of another mould, more particularly of the preliminary mould.

A construction according to the invention is illustrated by way of example in the accompanying drawing.l In the same, 1 is the central column of a bottle blowingmachine, on which are mounted in any desired manner the diierent cams for the control of the single movements, and which as they form no part of this invention, are not shown in the drawing. The machine carries at the bottom'on a vertically adjustable bracket 2, the finishing mould 3. The level of the upper edge of the said finishing mould 3 is always determined by the line When a larger finishing mould is required, the bracket 2 is lowered to such an extent that the said larger finishing mould is situated with its upper edge also in the line i12-, whilst when a smaller mould is used, the bracket is raised'to such an extent that the smaller mould placed on it, also reaches with itsip'per edge the line :v -oa.l The preliminary mould into which the glass is drawn from the bath (shown in part) and in whichthe parison is formed in a` preliminary manner, is marked 4 in the drawing. This preliminary mould is vertically divided in a known manner in the central radial plane passing through lthe central axis of the machine, so that two halves are produced which are adapted to open or close sideways. On the said arms are suspended interchangeably the single preliminary mould halves. If, for instance, there is a preliminary mould 4 of the size shown in the drawing, that is to say, the lower edge 4 of the preliminary mould is in the line j-g/ which corresponds to the height of the glass level in the bath, then the carriage 7 carrying the preliminary mould, is set accordingly in the machine at the level .z-z and secured there. When the preliminary mould 4 is changed, and in its place is introduced alarger preliminary mould, then, since this new preliminary mould 4 is longer than that previously used, but must stand with its bottom edge again in the line 1 -y, the preliminary mould carriage 7 must be Tf the preliminary mould 4 is smaller, then in order to bring its upper edge again to the line y-y, the carriage must be loweredto a corresponding extent below the line z-j-a.

The neck mould 8 is placed on the preliminary mould at the level of the line u-u. If, therefore, a preliminary mould 4 is used, which is larger than-that shown in the drawing, this line u'-u will be moved upwards to suit the length of the mould. If the preliminary mould t'o be introduced is lower, the line u-u will be moved downwards. It follows from this that the stroke or travel of thevpreliminary mould 8 ends at different levels for different preliminary moulds. This would necessitate a change of the'driving @mier this neck mould, if means were /P//t provided according to this'invention for /Ayroller 21 rotatable about a pin 20.

' by the joint 32 tothe carriage avoiding such a disadvantage. These means are as follows-:

At the top of the machine frame or bed is provided a control cam 9, the shape of which isinvariable and which is mounted in a rigidly fixed manner on the machine frame. This cam always remains in the samel place, whilst the other parts of the machine, namely the mould with its supports and driving members, rotate in a known manner aboutthe central axis of the. machine. On the saidm control cam travels the roller 1() of a doublearmed control lever 11 which is rotatable about a spindle 12 fixed in the rotating machine frame. VTo,thHeifreec/end of the-.said-4 double leverM1-1is connected by means of av joint 13 another lever14, the vother free end of which is connected by the joint 15 to a. rod 16 which engages by means of the joint 17 with the carriage 18 which carries the neck mould 8. This carriage 18` isarrangedio slide up and down by means of rollers 19 or the like in correspondinggnides of the rotating machine framef/The lever 14v carries approxim 1n the centre a supporting This roller'engages with a segment piece or bearing support 22which is'ro'tatable about the pin y12 and rigidly secured to a one-armed lev/er 23, the free end of which engages vby means of a joint 24 with a' pressure rod-25. This joint -24 includes a collar which is mounted looselyon the rod 25 and 'engages Aat the top with the nuts 26 and 27, whilst at the bottom a helical spring 28'presses against the collar, the other end of the helical spring engaging with a washer 31 held by the nuts 29 and 30. The pressure rod 25 is connected 7 which, as stated in the foregoing, carries preliminary mould' arms which may be opened laterally and the level of. adjustment 2 2 of which changes' according tothe size of thepreliminary mould 4. The segmentv piece 22- has at one side a radially extending supporting surmama-1a riage 7 the preliminary moulds 4 and by mean-s of the carriage 18, the neck moulds, as well as the' driving gear parts intended for the movement of the said parts, rotates in the known manner about the fixed bed 1 on which the control cam 9 is mounted in a fixed and rigid manner as already mentioned.

If the neck mould 8 with the'parison suspended from it, is to be brought down to the' finishing mould 3, into the position marked 8 in the drawing, it will be necessary to lower the-carriage 18 carrying the neck mouldruns along the circular surface 34 of the seg-` ment, namely` until the lower edge of the neck mould'8 has been brought from 'the line 'uf-fw down to the line fc-. The fini-shing mould which was opened during that process, is now laterally closed, and the vblowing of the bottle completed. After the blowing is finished, the .finishing mould opens again laterallyand the@ mpuld 8 is again raised. This is eected owing to the roller 10 travelling upwards on a cam corresponding to the cam 9, until it reaches again the position shown in the drawing'. Y

During this upward movement, the sup.

porting roller 21 first travels upwards onthe circular circumference 34 of the-segment. As soon as the line u-/Lt is reached by the bottom edge of the preliminary-mould 8. 'the roller 21 leaves the curved track 34 and passes to the radial supporting surface 33. As the lever 14 is pivotally connected to the .rod 16, and the latter in its turn tothe carriage 18, from the moment the roller 10 reaches .the crest of thecam 9 there takes place no longer any raisingof the neck mould.

The level or height to which the supporting roller 21 must always pass after leaving the curve 34 onto the radial supporting surface 33, determinestherefore the cefsation'of the upward movement of the neck mould 8. When another preliminary mould 4 is required which is, for instance, larger than the mould 4shown inthe drawing, thenas the lbottom edge 4 of the head mould llt must always remain on the line y-y, the carriage .7 must 'be raised upwards and locked in the corresponding position. This upward movement of the carriage 7 brings about, through the supporting rod 25 and lever 23, an upward turning of the segment piece 22, so that in that way the height of the neck mould' is shifted'upwards in accordance with the change of level of the line u-a. The up lo and down movement on the cam 9 which re* mains invariable, enables the roller 21, during the upward movement of the carriage 18, to pass later to the supporting surface 33, that is to say, the neck mould will be raised still more.

When, on the contrary, asmaller preliminary mould 4 is required, so that the line `u-u must be lowered, the preliminary mould carriage 7 is also lowered, and thereby the surface 33 of the segment piece 22 moved down to the same amount. During the up-. ward movement of the carriage 18, the roller 21 therefore passes earlier than before from the circular track 34 tothe radial supporting 25 surface 33, so that the lifting movement of the carriage l18 will be finished earlier than before.

It has been shown how owing to the rotation of the segment 22 the highest position of the neck mould automatically follows a shifting of the preliminary mouldu carriage 7 It remains, therefore,-to explain how it happens-that the lower position of the neck mould always corresponds to the line .frx. This is ensured by the circular portion 34 of the segment on which the supporting roller 21 travels during the downward movement, which is a cam which, relatively to the lever system, is concentric because this cam 34 is a portion of a circle, the centre of which is situated in the centre of rotation of, the lever system. As the movement of the roller 10 always changes during the downward lnovement to the position 10', the lower neck mo'uld edge must, according to the line u-u, always end its movement at the line --aa For the fine adjustment of the cam 22 and for thencompeatiouf any wear on the d 5o tracks of the roller 21, according to the invention the distance of the point Y24 from the pointg32 may be varied by any desired means,

for instance by .means of a nut 26 with a hand \wheel 27.

TheQvention is not limited to the construction \of\bottle blowing machines described and shown in the drawing. It may be applied whereverachange of a mould or of its level requires a shifting of the level of another mould.

The invention may also be used in cases in which the blow moulds, and not the preliminary moulds, are shifted. Then the intermediate member infiuencing the drive of. the

neck mould, must have its level determined by the level of the finishing mould. The invention may be applied in a similar way for the balancing of the position of the preliminary mould and of the finishing mould relatively to each other.

The invention may also be applied to niachines in which the iinishing mould is situated above the preliminary mould.

1. In a glass blowing machine of the class described, an adjustable mold support, a vertically reciprocating mold associated with said support, and an adjustable bearing support for positively varying the stroke of said mold, the position and operation of said bearing support being determined by the position of said adjustable support.

2. In a glass blowing machine of the class described, an adjustable mold support, aver-V tically reciprocating mold associated with said support, actuating means for imparting reciprocation to saidmold', and stroke controlling means coacting with saidactuating means and adjustable incident to the adjustment of said support to maintain cooperative relation between the mold and said support in its different positions.

3. In a glass blowing machine of the class described, an adjustable mold support, a vertically reciprocating mold associated with said support,actuating means for imparting reciprocation to saidV mold, anda camrooperative with said actuating means and 'con-Y nected with said support for adjusting the stroke of said actuating means incident to the adjustments of said support.

4. In a glass blowing machine of the class described, an adjustable mold support, a mold associated with said support, operating means ,for moving said mold into and out of cooperation with said support and comprising a rockinglever, and supporting means for said lever movable with said support to vary the rocking movement of said lever and thereby allow the cooperative relation between the mold and said support to be established in the various adjustmentsof the latter.

5. In a glass blowing machine of the class described, an adjustable. mold support, a mold associated with said support, means to vertically reciprocate the moldcomprising a lever system, and a cam member associated with said lever system and constructed to alter the highest positionofthe moldto accord with the adjustment of said support without change of the lowest position.

6. a glass blowing machine nof the class described. anadjustable mold support, a mold associated with said support,means to vertically reciprocate the mold comprising a lever system, and a cam member associated with said lever system and having two cam surfaces each of which determines a limit of travel of the movable mold.

7. In a glass blowing machine of the class 'tiolrbetweenetliemcamwmember and the supneck mold to said respective positions, cam

means controlled from the preliminary mold carriage to'efect the cooperation of the neck mold with the preliminary mold in the various positions of the latter, a stationary support, and means on said stationary support for operatingthe actuating means aforesaid.

In testimony whereof I havesigned my port whereby adjustment of the supptwi'l'lanevtov thi'ssspe'cication. Y'

adjust the-cam surface affecting one of the extreme positions of the mold to permit cooperation of the mold and said support inthe various adjustments of the latter.

, 8.4 In a glass blowing machine of the class described, upper and lower adjustable mold supports adapted to receive molds of different sizes, vmeans to transfer glass to be blown from one mold to the other, meansto'verti- HANS HILLMANN.

Y cally reciprocate said transfer means to effect `cooperation between said means and the 85 molds, and a bearing support with which the y reciprocating means coacts,

2-5 justment of one of said mold supports relaf said loearlinjgsup;1-- port being adjustable .to Var the'strf'o e of the reeiprocatin/gas'toard with the adtivev to the other.

JP*9. In a glass blowing machine of the class derbedupperandloweradjnstalolevmoldvr supports adapted to receive molds of dierent 3e sizes, means to transfer glass to'be blown .from one mold to the other, means to verticalv ly reciprocatesaid transfer means to effect cooperation between said meansand the f Jmolds, and a bearing support with which the reciprocating means coacts, said bearing sup-A Y level, means to transfer the glass from the preliminary mold to the finishing mold .including actuatingmeans for yertically reciprocating said transfer means, asupportl-ng member-coacting withsaid actuating means,

and a connection, between the last named means and thesupport for the preliminary moldf Y' 1' f;

/A In a glass blowin machine ofthe class Ito described, a rotary/mol "support, a glass tank associ/ated with said support, a verti n a YVjustahle carriage on saldrota support, a

preliminary mold-mounted on said carriage. 4

al finishing mold adjustably mounted on said rotary support, a neck mold adapted to cooperate with the preliminary mold in one position and with the finishing mold in another position, actuating means for moving said, 

